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1956 Map of Black River D-4

Name: 1956 Topographic Map of Black River D-4
Creator: U.S. Geological Survey
Published: 1959
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1959

About this map

The Porcupine River flows through the northern reaches of this Alaskan interior landscape, cutting through the distinctive geological formation known as the Lower Ramparts. Mapped in the mid-1950s using aerial photography, the terrain is defined by dramatic elevations including Frozen Calf Mountain in the west and the soaring heights of Niggerhead Mountain to the southeast.

A solitary Cabin located along the riverbank serves as the only evidence of human habitation in this vast wilderness, emphasizing the seasonal and transient nature of life along the waterway. The map provides precise elevation data through several triangulation stations, such as Vabm 1695 Rat and Vabm 1592 Tommy, which were critical for surveying this subarctic drainage basin. South of the river, Rat Creek meanders through a complex system of ponds and wetlands, illustrating the permafrost-influenced hydrology of the region.